Entry to The American Express Lounge at Sydney International Airport (American Express Lounge) in Terminal 1.
Located next to Gate 24, Terminal 1 Departures
Also free trolley hire, Free wifi, express customs, valet parking discount of $20.
The Cards listed below that are current and issued by American Express Australia Limited are eligible to enter The American Express Lounge with the exception of internationally issued American Express® Centurion and American Express® Platinum Cards, which are also eligible to enter the American Express Lounge:
American Express® Centurion Card,
American Express® Platinum Card,
American Express® Business Centurion Card,
American Express® Business Platinum Card,
American Express® Corporate Platinum Card,
American Express® Qantas Corporate Platinum Card,
American Express® Platinum Reserve Credit Card,
Qantas American Express Ultimate Card,
American Express Velocity Platinum Card.
(b) The cards listed below that are current and issued by licensed network partners are eligible to enter The American Express Lounge:
ANZ Frequent Flyer Black American Express Card,
ANZ Rewards Black American Express Card,
Westpac Altitude Black American Express Card,
Westpac Earth Black American Express Card,
Commonwealth Bank Diamond Awards American Express Card.
I only see access to AMEX lounge @ SYD International terminal.
No mention of qantas lounge anywhere in your link. Op please check.